4x-15y=64, 3x+2y=9 cross multiplication method

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4x-15y=64, 3x+2y=9 cross multiplication method

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Abigail 5 months 2022-01-06T00:34:57+00:00 1 Answer 0 views 0

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    2022-01-06T00:35:58+00:00

    Answer:

    this can be written as

    4x-15y-64 = 0

    3x+2y -9 = 0

    by cross multiplication

    x = -15×-9 -2×-64/4×2-3×-15

    x= 135+128/8+45

    x= 263 / 53

    y = -156/53

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